mcpField
L
langchain-agent

langchain-agent

github.com/rebyteai-templateAgent workflows1762 installsUpdated 19w ago
Repository

About langchain-agent

langchain-agent is an AI agent template built with LangGraph and the Vercel AI SDK, aimed at developers building a web-based agent. It includes search and calculator tools and uses PostgreSQL.

Key features

  1. 01Search engine tool
  2. 02Calculator tool
  3. 03LangGraph-based agent
  4. 04Next.js application
  5. 05PostgreSQL database

Use cases

  1. 01Building an agent with web search
  2. 02Adding calculations to agent tasks

Install

Copy the command and run it in a terminal.

$npx skills add https://github.com/rebyteai-template/rebyte-skills --skill langchain-agent

After installing, type/langchain-agentin Claude Code to confirm it loaded.

Details

From the project README

LangChain Agent

An AI agent with tools (search engine and calculator) powered by LangGraph and the Vercel AI SDK.

Tech Stack

  • Framework: Next.js
  • AI: LangChain.js, LangGraph, AI SDK
  • Database: PostgreSQL
  • Package Manager: pnpm

Prerequisites

  • PostgreSQL database
  • OpenAI API key

Setup

1. Clone the Template
git clone --depth 1 https://github.com/Eng0AI/langchain-agent.git .

If the directory is not empty:

git clone --depth 1 https://github.com/Eng0AI/langchain-agent.git _temp_template
mv _temp_template/* _temp_template/.* . 2>/dev/null || true
rm -rf _temp_template
2. Remove Git History (Optional)
rm -rf .git
git init
3. Install Dependencies
pnpm install
4. Setup Environment Variables

Create .env with required variables:

  • POSTGRES_URL - PostgreSQL connection string
  • OPENAI_API_KEY - OpenAI API key for the agent

Build

pnpm build

Development

pnpm dev

Comments

Markdown supported